* {
    margin: 0;
    padding: 0;
}

ul,
li {
    list-style: none;
}

html,
body {
    background-color: #f1f1f1;
}

.page-wrapper {
    max-width: 640px;
    margin: 0 auto;
    box-shadow: 0 0 14px 2px rgb(0 0 0 / 10%);
}

.header {
    height: 42px;
    line-height: 42px;
    display: flex;
    flex-wrap: nowrap;
    background-color: #999999;
    padding: 10px 10px;
}

.header .header-left,
.header .header-right {
    display: flex;
    flex-wrap: nowrap;
    flex: 1;
}

.header .header-right {
    justify-content: flex-end;
}

.header .header-left .window-action {
    width: 22px;
    height: 22px;
    line-height: 22px;
    border-radius: 50%;
    margin-right: 3px;
    text-align: center;
    cursor: default;
    margin-right: 15px;
    box-shadow: 1px 1px 2px rgb(0 0 0 / 30%);
    text-shadow: 1px 1px 2px rgb(0 0 0 / 30%);
}

.header .header-right .window-action {
    width: 22px;
    height: 22px;
    margin-left: 16px;
}

.header .close {
    background-color: #FC5652;
}

.header .min {
    background-color: #FDBC40;
}

.header .max {
    background-color: #34C749;
}

.gg-browser {
    box-sizing: border-box;
    position: relative;
    display: block;
    transform: scale(var(--ggs, 1));
    width: 24px;
    height: 18px;
    border: 2px solid;
    border-radius: 3px;
    margin-top: 3px;
}

.gg-browser::after,
.gg-browser::before {
    content: "";
    display: block;
    box-sizing: border-box;
    position: absolute;
    width: 22px;
    height: 2px;
    background: currentColor;
    top: 4px
}

.gg-browser::after {
    border-radius: 3px;
    width: 2px;
    box-shadow:
        3px 0 0,
        6px 0 0;
    top: 1px;
    left: 1px
}

.gg-sun {
    box-sizing: border-box;
    position: relative;
    display: block;
    transform: scale(var(--ggs, 1));
    width: 24px;
    height: 24px;
    background:
        linear-gradient(to bottom,
            currentColor 4px, transparent 0) no-repeat 5px -6px/2px 6px,
        linear-gradient(to bottom,
            currentColor 4px, transparent 0) no-repeat 5px 14px/2px 6px,
        linear-gradient(to bottom,
            currentColor 4px, transparent 0) no-repeat -8px 5px/6px 2px,
        linear-gradient(to bottom,
            currentColor 4px, transparent 0) no-repeat 14px 5px/6px 2px;
    border-radius: 100px;
    box-shadow: inset 0 0 0 2px;
    border: 6px solid transparent
}

.gg-sun::after,
.gg-sun::before {
    content: "";
    display: block;
    box-sizing: border-box;
    position: absolute;
    width: 24px;
    height: 2px;
    border-right: 4px solid;
    border-left: 4px solid;
    left: -6px;
    top: 5px
}

.gg-sun::before {
    transform: rotate(-45deg)
}

.gg-sun::after {
    transform: rotate(45deg)
}

.gg-moon,
.gg-moon::after {
    display: block;
    box-sizing: border-box;
    border-radius: 50%
}

.gg-moon {
    overflow: hidden;
    position: relative;
    transform: rotate(-135deg) scale(var(--ggs, 1));
    width: 20px;
    height: 20px;
    border: 2px solid;
    border-bottom-color: transparent
}

.gg-moon::after {
    content: "";
    position: absolute;
    width: 12px;
    height: 18px;
    border: 2px solid transparent;
    box-shadow: 0 0 0 2px;
    top: 8px;
    left: 2px
}

.calc-area {
    padding: 10px;
    background-color: #999999;
}

.calc-area .calc-line {
    height: 40px;
    line-height: 40px;
    font-size: 30px;
    text-align: right;
}

.calc-area .current-number {
    height: 64px;
    line-height: 64px;
    font-size: 38px;
    font-weight: 600;
    text-align: right;
}

.keyboard-line {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
}

.keyboard-line .keycode {
    height: 25vw;
    width: 25vw;
    line-height: 25vw;
    font-size: 28px;
    font-weight: 600;
    background-color: #d6d6d6;
    text-align: center;
    border: 1px solid #999;
    box-sizing: border-box;
}

.keyboard-line .keycode:last-child {
    background-color: #F5923E;
    color: #fff;
}

.history-container {
    position: fixed;
    height: 80vh;
    width: 100%;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    padding: 16px;
    box-sizing: border-box;
    background-color: #f3f3f3;
}

.history-container .title {
    font-size: 22px;
    line-height: 44px;
    border-bottom: 1px solid #dedede;
}

.history-container .history-item {
    height: 44px;
    line-height: 44px;
    font-size: 18px;
    border-bottom: 1px solid #dedede;
    text-align: right;
    overflow-x: auto;
}

.history-container.hidden {
    opacity: 0;
    transform: translate3d(0, 200vw, 0);
    animation: fadeDown 0.2s linear;
}

.history-container.show {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    animation: fadeUp 0.2s linear;
}

@keyframes fadeDown {
    0% {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }

    100% {
        opacity: 0;
        transform: translate3d(0, 200vw, 0);
    }
}

@keyframes fadeUp {
    0% {
        opacity: 0;
        transform: translate3d(0, 200vw, 0);
    }

    100% {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}